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My Projects blog

Tutorials, Ideas and Stories

Xiaomi Mijia Hygrothermo v2 sensor data on Raspberry Pi

There's a neat looking Xiaomi sensor with a display which is capable of showing temperature and humidity data. https://youtu.be/q-VYxZtR-Dg It can trasmit this information over Bluetooth Low Energy (BLE), and if we want to get that in command line from a Raspberry Pi,...

Uploading ESPimatic to ESP8266

There's a really handly little development board called ESP8266 which is able to run Arduino code. My current home automation dashboard is pimatic (yes, lowercase p), and a community member from the pimatic forums koffienl created a project called ESPimatic which...

Give more power to USB devices on Raspberry Pi

There's a way to allow your Pi to provide as much power to the connected USB devices as possible. Let me show you how. You can check how much power do your USB devices use sudo lsusb -v | grep -e 'MaxPower' -e 'Bus [0-9]' sudo nano /boot/config.txt add:...

Dataplicity user su-ing

When using the Dataplicity service, you get logged into their default user 'dataplicity'. You need to su into your regular user, usually 'pi'. To make this more convenient (also less secure, so please consider yourself warned!) you can create a sudoers config to allow...

Setting up a static IP for our WiFi interface in Raspbian

In case our router doesn't have a DHCP server (unlikely) or it doesn't support binding IP addresses to MAC addresses so we always get the same IP for our Pi (possible), we need to set a static IP on the Pi. That way we can make sure the Pi will be reachable on the...

HY28B 2.8″ TFT display on Raspberry Pi

Let's see what to do to utilize the HY28B as a screen for our Pi. This time I haven't connected the "touch" part of the display, so now I can only use it as a 2.8 inch screen, but I will go forward, and set up the touch functions later on. Some back story I possess a...